Potassium Carbonate → tert-Butyl N-[(1S,2S)-2-{[3-methyl-5-(trifluoromethyl)pyrazin-2-yl]amino}cyclopentyl]carbamate

HRID 1750499노트

반응식

HRID 1750499 반응식
Br[C:2]1[C:3]([NH:12][C@H:13]2[CH2:17][CH2:16][CH2:15][C@@H:14]2[NH:18][C:19](=[O:25])[O:20][C:21]([CH3:24])([CH3:23])[CH3:22])=[N:4][CH:5]=[C:6]([C:8]([F:11])([F:10])[F:9])[N:7]=1.[CH3:26]B(O)O.C(=O)([O-])[O-].[K+].[K+]>O1CCOCC1.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH3:26][C:2]1[C:3]([NH:12][C@H:13]2[CH2:17][CH2:16][CH2:15][C@@H:14]2[NH:18][C:19](=[O:25])[O:20][C:21]([CH3:24])([CH3:23])[CH3:22])=[N:4][CH:5]=[C:6]([C:8]([F:11])([F:10])[F:9])[N:7]=1

참가 물질

6

반응물 3

HCID 11430Potassium CarbonateHCID 139377Methylboronic AcidHCID 118308064tert-butyl ((1S,2S)-2-((3-bromo-5-(trifluoromethyl)pyrazin-2-yl)amino)cyclopentyl)carbamate

생성물 1

HCID 118308261tert-Butyl N-[(1S,2S)-2-{[3-methyl-5-(trifluoromethyl)pyrazin-2-yl]amino}cyclopentyl]carbamate

시약·촉매·용매 2

HCID 178418397HCID 178418397, 화합물촉매HCID 312751,4-Dioxane용매

실험 절차

A mixture of tert-butyl N-[(1S,2S)-2-{[3-bromo-5-(trifluoromethyl)pyrazin-2-yl]amino}cyclopentyl]carbamate (800 mg, 1.88 mmol), methylboronic acid (CAS number 13061-96-6; 338 mg, 5.64 mmol), tetrakis(triphenylphosphine)palladium (217 mg, 0.19 mmol) and, 2 M potassium carbonate (aq, 3.8 ml, 7.53 mmol) in 1,4-dioxane (6.3 ml) was sealed, evacuated and purged with nitrogen and then subjected to microwave irradiation at 120° C. for 2 hours. The reaction mixture was then diluted with ethyl acetate (40 ml) and water (10 ml). The organics were washed with water and brine, dried over sodium sulfate and concentrated in vacuo. The residue was then purified by column chromatography (silica, 0-50% ethyl acetate/petrol) to afford the title compound.

후처리

  1. customwas sealed
  2. customevacuated
  3. custompurged with nitrogen
  4. customirradiation at 120° C. for 2 hours
  5. additionThe reaction mixture was then diluted with ethyl acetate (40 ml) and water (10 ml)
  6. washThe organics were washed with water and brine
  7. dry with materialdried over sodium sulfate
  8. concentrationconcentrated in vacuo
  9. customThe residue was then purified by column chromatography (silica, 0-50% ethyl acetate/petrol)

출처 및 근거

ORD 기록
ord-b179aeec026e434a8559fa63346440a1
출처 데이터셋
uspto-grants-2015_10
특허 번호
US09156829B2

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